Officine Gullo
18
CHECKING HEAT OUTPUT
The appliances must be checked in such a way as to verify that the output is correct:
•
The heat output (thermal power) is indicated on the data plate of the appliance.
•
Firstly, check that the appliance can be used with the type of gas supplied; then check that the indication
on the plate corresponds to the gas to be used. For converting to another type of gas, check that the type
of gas complies with what is stated in this instruction manual.
Figure A
• Read the pressure with a gauge inserted in the relative pressure
outlet (see figure A).
• Remove the hermetically closed screw and connect the gauge
pipe.
• After reading, put back the screw, tightening it hermetically and
check for leaks.
Connection for liquid gas (Propane HD-5)
The connection pressure for liquid gas is between 2.74 kPa and 3.24 kPa (11 Iwc and 13 Iwc).
Connection with natural gas
The connection pressure for natural gas is between 1.74 kPa and 3.24 kPa (7 Iwc and 13 Iwc)
THIS APPLIANCE IS EQUIPPED WITH THE GAS TYPE AS PER YOUR ORDER - A conversion kit is provided with the range
if it ever needs to be converted to a diferent type of gas supply (LPG or Natural Gas).
19
Officine Gullo
ADJUSTMENTS IN MAIN BURNERS
Air shutter adjustments are preset at the factory. These adjustments may need to be redone and/or fine tuned by
the installer. These adjustments are normal and can be regulated and fixed with a screw by adjusting the air shutter.
In the “Burners technical data” table are the approximate values of parameter “h” (air shutter). The volume flow of
primary air (air shutter) must be regulated so that the flame does not tend to come away from the burner when it is
cold or backfire when the burner is hot, The flame should be almost all blue all the time. Lowest setting adjustment
can be made by turning the bypass screw by a 1/4 of the turn at time, see table below for values, note that for LPG
the screw position should be closed.
GAS A = Natural gas (pressure at the outlet of the regulator) = 10 mbar (4 inch water)
GAS E = Propane gas (pressure at the outlet of the regulator) = 24.9 mbar (10 inch water)
BURNERS TECHNICAL DATA TABLE & ADJUSTMENT VALUES
GAS A (Natural gas)
Burner
Nominal Gas
Consumption
(BTU/h)
Main Injector size
Nominal/(Measured)
(mm)
Lowest setting
addjustment
(By-pass Screw
Adjustment)
(See note)
Air Shutter Adjustment
(Primary Aeration
Adjustment)
Values in mm
Small
11,942
1.70
¼ turn
32
Medium
18,767
1.85
¼ turn
32
Large
25,591
2.10
¼ turn
32
GAS E (Propane gas)
Burner
Nominal Gas
Consumption
(BTU/h)
Main Injector size
Nominal/(Measured)
(mm)
Lowest setting
addjustment
(By-pass Screw
Adjustment)
(See note)
Air Shutter Adjustment
(Primary Aeration
Adjustment)
Values in mm
Small
11,942
0.95
0.50 Fully closed
40
Medium
18,767
1.10
0.60 Fully closed
40
Large
25,591
1.35
0.75 Fully closed
20
Summary of Contents for GES8MPU
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